yes for sure the mock test is meant to analyze your strong points and weak points without displaying the marks it will be absolutely naive to conduct the mock test.

Yes, definitely full solutions are provided. Mock tests are meant to help you in knowing your position and improve your performance. That can be only done by analysing your result and solutions.

After every mock test, you should analyse solutions of each one of the thoroughly which will help you in overcoming your mistakes and come up with a strategy to definitely improve your marks and percentile. It will also help you to know about your strength and weakness which will help you in attempting easy questions first, that will reduce your chance of committing a silly mistake in an easy question or missing out an easy question.

Along with this, you will also get enough time to attempt medium level difficult questions which will overall increase your speed with accuracy which leads to increase your percentile.